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DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

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Return Air PlenumSupply Air."':0-·-="'-::':·.-·-.-.-....-..-.--::.-:::",-,;-:.-::, :..•. -=.:---': .. ~.Suspendedceiling000L-T=INCANDIncandescentlightNot ventedNot ventedL-T=REC-FLUOR-NVIIFluoresc entVented toreturn OlrL-T=REC-FLUOR-RVIFixturesVented tosupply air andre turn OIrL-T=REC-FLUOR-RSVIFig. III.14.Examples of LIGHTING-TYPE.LlGHTING-W/SQFTis an alternative method (to LlGHTING-KW) for specifyingthe maximum overhead lighting energy use. The dimensionsare watts of 1 ighting energy use per square foot of SPACEfloor area. The actual overhead lighting energy requiredby the SPACE during any given hour is the value assignedto this keyword multiplied by the square feet in the SPACEmultiplied by the fractional value assigned for that hour(see LIGHTING-SCHEDULE).Note that there is a distinction between the amount ofillumination produced and the power consumed for incandescentand fluorescent 1 ighting (the keywords describe thepower consumed). Thus, if the same values of LIGHTING-KWor LIGHTING-W/SQFT are specified for an incandescent 1 ightand for a fluorescent light, the amount of illuminationfrom the flourescent light will be approximately twicethat from the incandescent light. The distribution of theenergy for these two is approximately given by thefollowing table.Type ofEnergyVisible lightInfraredConvect i on-condu ct ionBallastFl uorescentper cent19313614I ncan des cen tper cent107218oEventually all the energy gets converted into SPACE load.II 1. 45 (Revised 5/81)

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